<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>简单表单示例</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #f4f4f4;
        }
        .container {
            max-width: 600px;
            margin: 50px auto;
            padding: 20px;
            background-color: white;
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
        }
        h1 {
            text-align: center;
            color: #333;
        }
        form {
            display: flex;
            flex-direction: column;
        }
        label {
            margin-top: 10px;
            font-weight: bold;
        }
        input, textarea {
            width: 100%;
            padding: 10px;
            margin-top: 5px;
            border: 1px solid #ddd;
            border-radius: 5px;
        }
        button {
            margin-top: 20px;
            padding: 10px 20px;
            background-color: #333;
            color: white;
            border: none;
            cursor: pointer;
            border-radius: 5px;
        }
        button:hover {
            background-color: #555;
        }
    </style>
</head>
<body>
    <div class="container">
        <h1>用户信息表单</h1>
        <form action="/submit-form" method="post">
            <label for="name">姓名：</label>
            <input type="text" id="name" name="name" required placeholder="请输入您的姓名">

            <label for="email">邮箱：</label>
            <input type="email" id="email" name="email" required placeholder="请输入您的邮箱">

            <label for="phone">电话：</label>
            <input type="tel" id="phone" name="phone" placeholder="请输入您的电话号码">

            <label for="message">留言：</label>
            <textarea id="message" name="message" rows="5" placeholder="请输入您的留言"></textarea>

            <button type="submit">提交</button>
        </form>
    </div>
</body>
</html>